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USA | |
| [var. Uralite] King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. |
| [var. Uralite] Peter Cristofano |
| Wall, Eby, and Winter, 2004. |
| Castle, R.O., Hepburn, J.C., Kopera, J.P. (2005). Bedrock Geologic Map of the Reading Quadrangle, Massachusetts |
| [var. Uralite] Sears, John Henry (1905): The Physical Geography, Geology, Mineralogy and Paleontology of Essex County |
| [var. Uralite] Wadsworth, M.E. (1877) Notes on the Mineralogy and Petrography of Boston and Vicinity. The Intrusive Rocks in the Vicinity of Boston. In Proceedings of the Boston Society of Natural History, 19:217-238. |
| [var. Byssolite] Rocks & Min.: 22:209. |
| [var. Byssolite] P. Cristofono collection |
| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
| [var. Uralite] P Cristofono collection |
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Two Hundred meter Locality, Webster prospects, Sanford, York County, Maine, USA